SLA points on all objects are assigned Generating status before the background processing starts

src/slic3r/GUI/Plater.cpp

@@ -4393,6 +4393,12 @@ void Plater::reslice()
     // Stop arrange and (or) optimize rotation tasks.
     this->stop_jobs();
 
+    if (printer_technology() == ptSLA) {
+        for (auto& object : model().objects)
+            if (object->sla_points_status == sla::PointsStatus::NoPoints)
+                object->sla_points_status = sla::PointsStatus::Generating;
+    }
+    
     //FIXME Don't reslice if export of G-code or sending to OctoPrint is running.
     // bitmask of UpdateBackgroundProcessReturnState
     unsigned int state = this->p->update_background_process(true);